Convert JPG to WebP
Free, private and fast: everything runs in your browser and your JPG files are never uploaded.
JPG to WebP: why convert
If you run a website, a shop or a blog, images are usually the heaviest part of each page, and smaller images load faster on phones and slow connections. WebP is supported by every current browser and gives smaller files than JPG at a similar visual quality; Google, which created the format, reports lossy WebP files 25 to 34 % smaller than comparable JPGs in its own tests. Your results depend on the photos, so the list shows the size before and after for each file. Drop your JPGs here, pick a quality and download WebP versions, one by one or in a zip. The encoding is done by your browser: Chrome, Edge and Firefox can write WebP, while Safari can show WebP but cannot create it, and the page tells you so instead of quietly handing you a PNG.
How to convert JPG to WebP
- Drop your .jpg files in the box, or click to choose them.
- Pick a WebP quality. 80 % is a good balance for photos on the web; lossless keeps every pixel.
- Click Convert to WebP and download the WebP file, or a zip with all of them.
What changes when you convert
Use Chrome, Edge or Firefox
Browsers write images through the canvas element, and Safari on Mac, iPhone and iPad has never supported WebP output there. When a browser cannot write WebP it falls back to PNG without warning; this page checks for that and shows a clear message instead. On an Apple device, open the page in Chrome or Firefox for Mac, or use a computer.
Lossy on top of lossy
The JPG has already been compressed once. Re-encoding at a very low WebP quality stacks a second loss on the first, which shows as smeared detail and colour blocks. Stay at 80 % or above for photos, and always start from the best JPG you have rather than from a copy that was already shrunk for the web.
Lossless WebP is rarely right for photos
The lossless setting stores the decoded JPG pixels exactly, including the JPG's own compression noise, and photos then often end up larger than the JPG you started with. Lossless is meant for screenshots, logos and graphics.
Who can open the WebP
All current browsers display WebP, and WordPress accepts WebP uploads since version 5.8. Some email programs, office suites and older image editors still do not, so keep the JPG originals for anything other than the web.
Location and camera data are removed
The WebP contains only the image. EXIF data from the JPG, including the GPS position a phone may have recorded, is not copied, which is usually what you want for pictures you publish online.
About the formats
JPG
JPG (or JPEG) is the most widely used image format for photos, supported by every camera, phone, browser and image editor. It uses lossy compression, which keeps files small at a small cost in quality.
- Best for photos; text and sharp lines can get blurry edges.
- No transparency: transparent areas become a solid colour.
- The quality setting trades file size against detail.
WebP
WebP is an image format Google released in 2010 for faster web pages. It can be lossy like JPG or lossless like PNG, supports transparency and animation, and is usually smaller than both. Websites often serve WebP, which is why saved images end up in this format.
- Supported by all current browsers, but not by every image editor, office program or upload form.
- Lossy and lossless WebP use the same .webp extension.
- Can be animated, like a GIF.
- Images can be at most 16383 × 16383 pixels.
Frequently asked questions
Are my images uploaded?
No. The JPG is decoded and the WebP is written by your browser on your own device.
How much smaller will the WebP be?
It depends on the photo and the quality you pick, so check the before and after sizes in the file list. Detailed, high-quality JPGs usually shrink the most; JPGs that were already heavily compressed shrink less.
Why does Safari show an error?
Safari cannot create WebP images from a web page, although it can display them. Use Chrome, Edge or Firefox for this conversion.
Do I still need the JPG files?
Keep them as originals. If a visitor's software cannot read WebP, or you need a print or email version, the JPG is the safer file to send.